Showing papers in "Transportation Research Part A: General in 1982"

TL;DR: NETVACl is a macro traffic simulation model sensitive to network topology, intersection design and control, and a wide array of evacuation management strategies that can handle large networks at modest computational costs and includes many reporting options.

TL;DR: A specific multicriteria method, ELECTRE IV, has been designed for this purpose, based on the concepts of “pseudo-criterion” and “outranking”, which leads to a final partial ranking established without any kind of weighting of the criteria.

TL;DR: In this article, a study has been made of the factors which determine the choice of parking places of visitors to a city center, including walking time, parking charges, occupation rates of different parking alternatives, possible parking-time restriction, and some accessibility factors connected with parking alternatives from which a visitor could make a choice.

TL;DR: A “revised” choice theory is outlined to handle the situation where current models and modeling strategies based on classical choice theories may be badly misspecified and produce unacceptable results in the transportation and energy policy arenas.

TL;DR: In this article, the authors describe the role and significance of the generation of choice sets as an integral part of choice modelling and review alternative approaches to the choice set problem whereby the inclusion of choice set generation in the overall choice may be seen either as an exogenous or an endogenous process.

TL;DR: The research reported here helps to delineate the boundaries of activity-related behavior by developing a theoretical model ofactivity-related choices and exploring it using data from a conventional home interview survey, and the results tend to support the division of the causal factors into the three categories of activity program/needs, temporal constraints and spatial constraints.

TL;DR: In this paper, the authors examined the effect of accumulated experience on the choice outcome in a subsequent period and a recently developed panel data procedure which involves pooling the data while recognizing its special nature.

TL;DR: In this paper, an individual specific constraint choice set is defined in a destination choice model, and how they can be applied for improving accuracy in prediction, and the results show that applying choice set restrictions yields a modest improvement in the accuracy of shopping destination choice.

TL;DR: A review of statistical problems which in varying degrees of severity are common to the majority of models used in conventional analyses of travel demand, whether these are based on data defined for individual travellers or for groups of individuals.

TL;DR: A model for the analysis of terminal airspace capacity and the sensitivity of this capacity to the parameters which influence it is developed based on the concept of an expected ultimate capacity and applies to arriving traffic under saturation conditions.

TL;DR: A number of tests based on the likelihood ratio statistic have been developed as discussed by the authors, and available information on their power are summarized in this paper and numerical examples of their computational properties are given.

TL;DR: In this paper, the problems of calculating the multinomial probit choice functions and estimating the model parameters are discussed, and four techniques for calculating the choice functions are reviewed with regard to their comparative accuracy, computational requirements and applicability.

TL;DR: In this paper, the authors evaluated the effect of eliminating bus fares in off-peak in the cities of Trenton, New Jersey and Denver, Colorado, and found that the net ridership increase during the demonstration was on the order of 15% (about 45% during the off peak periods).

TL;DR: In this paper, the authors examine certain integrating themes in the development, specification and use of models with particular reference to the critical environment within which both research and practise are conducted, including an identification of alternative models and methods of analysis for generating comparable information; the general relationship between descriptions, explanations and forecasts of travel behaviour; and the issue of model design.

TL;DR: The main results are that the total forecasting errors can be very large, especially if the model transfers poorly; poor transfer-ability was found between cities where the transit or shared ride markets are much different; and prediction from models having statistically different coefficients need not be much different.

TL;DR: In this article, a model is presented for probing a range of impacts which could be expected when instituting a new transit pricing system, and the model weights on-board ridership survey responses based upon disaggregated fare elasticity estimates.

TL;DR: In this paper, the authors investigated the relationship between gasoline consumption and urban development characteristics in 49 U.S. metropolitan areas and found that cities with medium size with clusters of high residential densities are associated with lower levels of per capita gasoline consumption.

TL;DR: In this article, a modeling technique for estimating responses of urban travelers to gasoline shortages under three different procedures for allocating scarce gasoline supplies is described, including white-market coupons, traditional rationing and traditional ration.

TL;DR: In this paper, the advantages and disadvantages of microsimulation techniques are discussed with particular reference to their use in the modelling of organized car sharing schemes and a critical comparison of model predictions and actual scheme performance is presented.

TL;DR: It is concluded that the nature of the subject implies that disaggregate statistical analysis is the most useful technique, and the theoretical framework essential to analysis or forecasting of behaviour must be established a priori.

TL;DR: In this article, the authors report on the results of two-way segmentations using location as one dimension and various sociodemographic variables as the second dimension, and conclude that there is no evidence to reject the postulate that geographic location affects recreation-travel behavior.

TL;DR: In this article, a brief review of airline route-frequency planning is given, together with a specific airline example, and five local types of trade-offs are described: frequency vs load factor, aircraft range vs technical fuel stops, frequency vs aircraft capacity, nonstop vs one-stop vs multi-stop flights, and direct vs connecting services.

TL;DR: In this article, the spatial pattern of intra-urban freight transportation in Lagos metropolis, Nigeria, using detailed data from a comprehensive field survey was examined using R-mode factor analysis with varimax rotation.

TL;DR: In this paper, a novel approach has been tried, which consists of offering subjects cash in return for the loss of a specified amount of time, and the distribution of the value of time in the population from which the subjects are sampled is then estimated using the proportions of subjects accepting the offer at different levels of inducement.

TL;DR: In this article, the authors present a new methodology for simplified transportation policy analysis which requires limited input data and computational effort while at the same time is sensitive to a wide range of transportation policies and socio-demographic characteristics.

TL;DR: In this paper, the authors examined the economics of alternative route structure, a factor which affects design vessel size and other design parameters of the terminals, and concluded that trans-shipment is the optimal scenario with costs 21-28% lower than direct service costs.

TL;DR: In this article, the authors re-evaluated earlier methodology and derived a more reliable and accurate method of measuring the fuel consumption and related effects of a traffic management change, involving a significantly different approach to the traditional before and after method, was carried out during the morning peak over 2 1 4 km of multi-lane arterial road in Sydney.

TL;DR: For nearly two decades it has been recognised that there are serious deficiencies in the traditional aggregate modeling approach to travel demand analysis as mentioned in this paper. Yet nearly 10 years after some of the first major research projects, it was suggested that they have not yet been successfully applied in any major planning study, and there would seem to be a growing groundswell of doubt about their ability to live up to the expectations which were cultivated during the early '70s.

TL;DR: In this article, a battery of personality scales, containing scales from relevant inventories and some new conceptual constructs, were assembled and some preliminary tests for the usefulness of this battery were carried out.